We have a small multi-platform software company run from two home offices. I use two monitors and have a Mac, a PC, cradles for iPhone and Android phones plus the normal desk lamp etc. All of the above had to go up and down with the desk so I went for the higher weight version. I purchased just the mechanism and fixed this to my original desk top so it matched with my wife's desk. I love the pre-set positions; number one is the "feng shui" position required by my wife - it's slightly higher than my seated setting but lines up with the other desk! The unit has performed so well I don't even really think about it; I would certainly buy another Furna if we had a requirement.